<template>
  <section>
    <!--工具条 -->
    <el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
      <el-form :inline="true" >
        <el-form-item>
          <el-input v-model="keyword" placeholder="请输入关键字"></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" v-on:click="keywordQuery">查询</el-button>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="handleAdd">新增</el-button>
        </el-form-item>
      </el-form>
    </el-col>

    <!--列表-->
    <el-table :data="menus" highlight-current-row v-loading="listLoading" @selection-change="selsChange" style="width: 100%;">
      <el-table-column type="selection" width="55">
      </el-table-column>
      <el-table-column type="index" width="60">
      </el-table-column>
      <el-table-column prop="name" label="名称" width="100" sortable>
      </el-table-column>
      <el-table-column prop="component" label="组成部分" width="270" sortable>
      </el-table-column>
      <el-table-column prop="url" label="主路径" width="120" sortable>
      </el-table-column>
      <el-table-column prop="parent.name" label="父部门id" width="100" sortable>
      </el-table-column>
      <el-table-column prop="state" label="状态" width="100" sortable>
        <template scope="scope">
          <span v-if="scope.row.state==true" style="color: green">启用</span>
          <span v-else style="color: red">禁用</span>
        </template>
      </el-table-column>
      <el-table-column label="操作" width="150">
        <template scope="scope">
          <el-button size="small" @click="handleEdit(scope.$index, scope.row)">编辑</el-button>
          <el-button type="danger" size="small" @click="handleDel(scope.$index, scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!--工具条 批量删除和分页栏-->
    <el-col :span="24" class="toolbar">
      <el-button type="danger" @click="batchRemove" :disabled="this.sels.length===0">批量删除</el-button>
      <el-pagination layout="prev, pager, next" @current-change="handleCurrentChange"
                     :page-size="pageSize" :total="totals" :current-page="currentPage" style="float:right;">
      </el-pagination>
    </el-col>

    <!--新增和修改界面-->
    <el-dialog :title="title" :visible.sync="saveFormVisible" :close-on-click-modal="false">
      <el-form :model="saveForm" label-width="80px" :rules="saveFormRules" ref="saveForm">
        <el-form-item label="名称" prop="username">
          <el-input v-model="saveForm.name" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="组成部分" prop="phone">
          <el-input v-model="saveForm.component" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="主路径">
          <el-input v-model="saveForm.url" ></el-input>
        </el-form-item>
        <el-form-item label="菜单状态">
          <el-radio-group v-model="saveForm.state">
            <el-radio class="radio" :label="true">启用</el-radio>
            <el-radio class="radio" :label="false">禁用</el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item label="上级菜单">
          <el-cascader v-model="saveForm.parentId"
                       :options="menuTree"
                       :props="{ checkStrictly: true,label:'name' ,value:'id' }"
                       clearable></el-cascader>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click.native="saveFormVisible = false">取消</el-button>
        <el-button type="primary" @click.native="saveSubmit" :loading="saveLoading">提交</el-button>
      </div>
    </el-dialog>

  </section>
</template>

<script>
import util from '../../common/js/util'
//import NProgress from 'nprogress'
import { getMenuListPage, removeMenu, batchRemoveMenu, editMenu, addMenu } from '../../api/api';

export default {
  data() {
    return {
      //1.数据列表相关数据
      menus:[],//列表数据
      listLoading: false,//忙等框  默认不显示
      //2，分页数据
      totals:0,
      currentPage:1,
      pageSize : 5,
      //3.高级查询
      keyword :'',
      //4.批量删除
      sels: [],//列表选中列
      //5.添加和修改
      title : '',
      saveFormVisible: false,//编辑界面是否显示
      saveLoading: false,
      saveFormRules: {
        name: [
          { required: true, message: '请输入名称', trigger: 'blur' }
        ],
      },
      //编辑界面数据
      saveForm: {
        id:null,
        name:'',
        component: '',
        url: '',
        index: 1,
        parentId: null,
        state: true,
      },
      //部门数据
      menuTree:[],

    }
  },
  methods: {
    //1.获取员工列表
    getMenus() {
      //参数
      let para = {
        currentPage : this.currentPage,
        pageSize : this.pageSize,
        keyword : this.keyword
      };
      //显示忙等框
      this.listLoading = true;
      this.$http.post("/menu",para).then(res=>{
        //关闭忙等框
        this.listLoading = false;
        //显示分页数据
        this.menus = res.data.data;
        //计算分页栏
        this.totals = res.data.totals;
      }).catch(res=>{
        this.$message.error("系统繁忙,请稍后再试!!!")
      })
    },

    //2.点当前页的逻辑
    handleCurrentChange(val) {
      this.currentPage = val;
      this.getMenus();
    },

    //3.高级查询
    keywordQuery(){
      this.currentPage = 1;
      this.getMenus();
    },

    //4.删除
    handleDel: function (index, row) {
      this.$confirm('确认删除该记录吗?', '提示', {
        type: 'warning'
      }).then(() => {
        this.listLoading = true;
        this.$http.delete('/menu/'+row.id).then(res=>{
          //关闭忙等框
          this.listLoading = false;
          if(res.data.success){//成功
            this.$message.success("删除成功");
            //计算总页数
            let totalPase = Math.ceil(this.totals/this.pageSize)
            //  当前页是最后一页                         不是第一页                     最后一条数据
            if(this.currentPage==totalPase && this.currentPage != 1 && (this.totals-1)%this.pageSize==0){
              this.currentPage = this.currentPage-1;
            }
            this.getMenus();
          }else {
            this.$message.error("系统繁忙,请稍后再试!!!【500】")
          }
        }).catch(res=>{
          this.$message.error("系统繁忙,请稍后再试!!!【404,400】")
        })

      }).catch(() => {

      });
    },

    //5.选项改变是触发
    selsChange: function (sels) {
      this.sels = sels;
    },

    //6.批量删除
    batchRemove: function () {
      var ids = this.sels.map(item => item.id);
      this.$confirm('确认删除选中记录吗？', '提示', {
        type: 'warning'
      }).then(() => {
        this.listLoading = true;
        this.$http.patch("/menu",ids).then(res=>{
          //关闭忙等框
          this.listLoading = false;
          if(res.data.success){
            //跳转到第一页
            this.currentPage = 1;
            //重新获取数据
            this.getMenus();
          }else {
            this.$message.error("系统繁忙,请稍后再试!!!【500】")
          }
        }).catch(res=>{
          this.$message.error("系统繁忙,请稍后再试!!!【404,400】")
        })
      }).catch(() => {
      });
    },

    //7.显示修改界面
    handleEdit: function (index, row) {
      this.saveForm = Object.assign({}, row);
      this.title = '修改'
      this.getMenuTree();
      this.saveFormVisible = true;
    },
    //8.显示新增界面
    handleAdd: function () {
      this.saveForm = {
        id:null,
        name:'',
        component: '',
        url: '',
        index: 1,
        parentId: null,
        state: true,
      };
      this.title = '新增';
      this.getMenuTree();
      this.saveFormVisible = true;
    },
    //9.编辑
    saveSubmit: function () {
      this.$refs.saveForm.validate((valid) => {
        if (valid) {
          this.$confirm('确认提交吗？', '提示', {}).then(() => {
            this.saveLoading = true;
            let para = Object.assign({}, this.saveForm);
            let arr = para.parentId;
            console.log(arr);
            if(arr && arr.length==0){
              para.parentId = null;
            }
          if(arr && arr.length>0){
            para.parentId = arr[arr.length-1];
          }
          this.$http.put("/menu",para).then(res=>{
              this.saveLoading = false;
              this.saveFormVisible = false;
              if(res.data.success){
                this.$message.success("操作成功")
                this.getMenus();
              }else {
                this.$message.error("系统繁忙,请稍后再试!!!【500】")
              }
            }).catch(res=>{
              this.$message.error("系统繁忙,请稍后再试!!!【400,404】")
            })
          });
        }
      });
    },
    //获取菜单树
    getMenuTree(){
      this.$http.get("/menu/menuTree").then(res=>{
        this.menuTree = res.data;
      })
    }

  },
  mounted() {
    this.getMenus();
  }
}

</script>

<style scoped>

</style>